Fixing clamp and fixing device for wind turbine

Abstract

The utility model relates to the technical field of wind turbine transportation and experiments, and discloses a fixing clamp and a fixing device for a wind turbine. The fixing clamp comprises a clamping part and an adsorption part, the clamping part comprises a clamping seat and two clamping plates arranged on the clamping seat, a clamping opening capable of clamping the periphery of the end of the blade is formed between the two clamping plates, and a clamping block is further arranged at the included angle of the two clamping plates and used for clamping the edge of the blade; the adsorption part is arranged on the clamping plate and used for being adsorbed to the surface of the blade. The fixing device comprises a frame part and the fixing clamp. According to the fixing clamp, the two clamping plates are used for clamping the two sides of the blade, the clamping blocks are used for clamping the edges of the blade, the position of the blade in the length direction is fixed, meanwhile, the adsorption part can be adsorbed to the surface of the blade, the two faces of the blade are clamped in an anti-skid mode, and therefore the blade can be fixed. A stable clamping structure which is not prone to sliding is formed, the blade clamping stability of the fixing clamp is improved, and the safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine transportation and experiment, in particular to a fixing fixture and a fixing device for a wind turbine. Background Art

[0002] A wind turbine, also called a wind machine, is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and finally outputs alternating current. During the transportation and experiment of wind turbines, the blades need to be fixed.

[0003] In this regard, Chinese invention patent CN110871415A discloses a turning vehicle for preventing wind turbine blades from being pinched, the turning vehicle comprises a vehicle frame, a turning outer ring, a turning inner ring and a clamping mechanism, wherein the clamping mechanism comprises two fixing plates fixed to the turning inner ring and two clamping plates respectively fixed to opposite sides of the two fixing plates, and arc-shaped clamping grooves corresponding to the wind turbine blades are arranged on opposite sides of the clamping plates. In this way, the blades can be clamped by the clamping plates, achieving the effect of fixing the blades.

[0004] However, due to the changes in the curved shape of the blade surface, the fit of the clamps at different positions is uneven, and the surface of the wind turbine blades is smooth, and they have inertia during swing tests or transportation. This type of blade clamping method is prone to cause the clamps to become loose and slip when the blades are moving or swinging, posing a safety risk. Utility Model Content

[0005] In order to solve the above technical problem or at least partially solve the above technical problem, the utility model provides a fixing fixture and a fixing device for a wind turbine.

[0006] The utility model provides a fixing fixture for a wind turbine, comprising:

[0007] The clamping part includes a clamping seat and two clamping plates arranged on the clamping seat, a clamping opening capable of clamping the outer periphery of the end of the blade is formed between the two clamping plates, and a clamping block is also provided at the angle between the two clamping plates, and the clamping block is used to clamp the edge of the blade;

[0008] The adsorption part is arranged on the clamping plate and is used for adsorbing on the surface of the blade.

[0009] Optionally, the clamping portion further includes an adjusting member, and the adjusting member can adjust the angle between the two clamping plates.

[0010] Optionally, the adjusting member comprises two first telescopic members hingedly arranged on the clamping seat, and one end of each of the first telescopic members is hingedly connected to the outer side of the corresponding clamping plate.

[0011] Optionally, the adsorption part includes a plurality of adsorption components evenly distributed on the two clamps, the adsorption components include a guide rod passing through the clamps, a suction cup arranged at one end of the guide rod facing the blade, and an elastic member for providing elastic force to the guide rod toward one side of the blade, and the suction cup is used to be connected to a vacuum pump.

[0012] Optionally, an end plate is provided at one end of the guide rod facing away from the suction cup, and the elastic member includes a spring sleeved on a portion of the outer circumference of the guide rod, one end of the spring is connected to the end plate, and the other end of the spring is connected to the side of the clamping plate facing away from the blade.

[0013] Optionally, a clamping head is provided at the end of the clamping plate for abutting against the outer periphery of the blade.

[0014] The utility model also provides a fixing device for a wind turbine, comprising a frame part and at least one of the above-mentioned fixing clamps for the wind turbine arranged on the frame part.

[0015] Optionally, there are two fixing clamps, and the two fixing clamps are used to be arranged oppositely at two ends of the blade.

[0016] Optionally, the frame portion includes a seat body and two brackets arranged on the seat body, the clamp seats of the two fixing clamps are respectively arranged on the two brackets, each of the brackets is connected to a second telescopic member, and the second telescopic member is used to drive the fixing clamp to move closer to or away from the blade.

[0017] Optionally, the base body includes two fixed plates and an extension plate for connecting the two fixed plates, and the two brackets are respectively arranged on the two fixed plates, wherein the extension plates are multiple and of different specifications, and the multiple extension plates can be selectively connected between the two fixed plates.

[0018] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0019] The fixing clamp provided by the utility model is clamped on both sides of the blade by two clamping plates, and is clamped on the edge of the blade by a clamping block, so as to fix the position of the blade in the length direction. At the same time, it can be adsorbed on the surface of the blade through the adsorption part, and the two sides of the blade are clamped non-slip, forming a stable and non-slip clamping structure, thereby improving the stability of the fixing clamp in clamping the blade and reducing safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0021] In order to more clearly illustrate the implementation mode of the utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of a fixing fixture for a wind turbine according to an embodiment of the utility model in a use state;

[0023] Figure 2 This is a front view of the fixing fixture for a wind turbine according to an embodiment of the utility model in a use state;

[0024] Figure 3 It is a schematic structural diagram of the frame part described in the embodiment of the utility model.

[0025] Description of Reference Numerals

[0026] 1. Clamping part; 11. Clamping plate; 12. Clamping block; 13. Clamping head; 14. Clamping seat; 15. First telescopic member;

[0027] 2. Adsorption part; 21. Suction cup; 22. Guide rod; 23. Elastic member; 24. Vacuum pump;

[0028] 3. Frame; 31. Base; 32. Second telescopic member; 301. Bracket; 311. Fixed plate; 312. Extended plate;

[0029] 4. Leaves. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0031] The following description sets forth many specific details to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the implementation methods in the specification are only part of the implementation methods of the present invention, rather than all of the implementation methods.

[0032] Combination Figure 1 and Figure 2 As shown, the fixing fixture for a wind turbine provided in the embodiment of the utility model comprises a clamping part 1 and an adsorption part 2 .

[0033] The clamping part 1 includes a clamping seat 14 and two clamping plates 11 arranged on the clamping seat 14, wherein the clamping seat 14 can be arranged on a supporting structure, for example, the clamping seat 14 can be arranged on the frame part 3 described below, and the specific arrangement method is described below, so that the two clamping plates 11 can be supported at the corresponding positions of the blade 4. A clamping opening that can be clamped on the outer periphery of the end of the blade 4 is formed between the two clamping plates 11, and the clamping opening at this location matches the shape of the outer periphery of the end of the blade 4 to ensure that the two clamping plates 11 can be clamped on both sides of the blade 4, or the size of the clamping opening can be adjusted so that the size of the adjusted clamping opening can match the size of the outer periphery of the end of the blade 4, which are not restrictive and can be designed according to actual needs.

[0034] A clamping block 12 is also provided at the angle between the two clamping plates 11. Specifically, the clamping block 12 is arranged on the clamping seat 14 to increase the convenience of installing the clamping block 12. The clamping block 12 is used to clamp the edge of the blade 4, that is, a clamping groove matching the shape of the edge of the blade 4 should be formed on the clamping block 12, so that the edge of the blade 4 can be limited by the clamping block 12 to avoid the position movement of the blade 4 in its length direction. Under this design, the clamping block 12 can be supported on the side of the edge of the blade 4, and when the two fixing clamps are used in combination, there are two clamping blocks 12, and the two clamping blocks 12 can be clamped on the corresponding two edges of the blade 4 to ensure the limiting effect on the length direction of the blade 4. When the clamping plate 11 is clamped on the upper and lower surfaces of the blade 4, a stable clamping of the blade 4 can be formed, and the thickness of the blade 4 gradually expanding toward the root direction of the blade 4 can be limited, which can effectively prevent the blade 4 from sliding toward the tip of the blade 4.

[0035] The adsorption part 2 is arranged on the clamping plate 11 and is used to be adsorbed on the surface of the blade 4. That is, when the clamping plate 11 is clamped on the periphery of the blade 4, the adsorption part 2 can be attached to the blade 4 to increase the connection effect between the blade 4 and the clamping plate 11 and avoid relative sliding between the blade 4 and the clamping plate 11.

[0036] The fixing clamp provided by the utility model is clamped on both sides of the blade 4 by two clamping plates 11, and is clamped on the edge of the blade 4 by a clamping block 12, so as to fix the position of the blade 4 in the length direction. At the same time, the adsorption part 2 can be adsorbed on the surface of the blade 4 to clamp the two sides of the blade 4 in an anti-slip manner, forming a stable and non-slip clamping structure, thereby improving the stability of the fixing clamp in clamping the blade 4 and reducing safety risks.

[0037] In some embodiments, in combination Figure 1 and Figure 2As shown, the clamping part 1 also includes an adjusting member, which can adjust the angle between the two clamping plates 11, that is, the end of the clamping plate 11 is hingedly connected to the clamping seat 14. Under this design, the angle between the two clamping plates 11 can be adjusted by the adjusting member, thereby adjusting the size of the clamping opening. When in use, the ends of the two clamping plates 11 can be moved away from each other, thereby increasing the size of the clamping opening, making it easier for the end of the blade 4 to extend into the clamping opening until the edge of the blade 4 is inserted into the clamping groove of the clamping block 12 to complete the positioning. At this time, the size of the clamping opening can be reduced so that the two clamping plates 11 can be clamped on both sides of the blade 4, thereby increasing the convenience of operation.

[0038] In some embodiments, continue to refer to Figure 1 and Figure 2 The adjusting member includes two first telescopic members 15 hingedly arranged on the clamp seat 14, and one end of each first telescopic member 15 is hingedly connected to the outer side of the corresponding clamp plate 11. Specifically, the cylinder body of the first telescopic member 15 is hingedly connected to the clamp seat 14, and the end of the telescopic rod of the first telescopic member 15 is hingedly connected to the clamp plate 11, and the cylinder body can drive the telescopic rod to extend or retract along the extension direction of the telescopic rod. Among them, the first telescopic member 15 can be a hydraulic push rod. It can be understood that the first telescopic member 15 can also be an electric push rod or a pneumatic push rod, etc. These are not restrictive and can be selected according to actual needs.

[0039] In this design, the hinge position between the cylinder body and the clamp seat 14 remains stationary. Therefore, when the cylinder body drives the telescopic rod to extend or retract, the two telescopic rods can drive the two clamps 11 to move closer or apart, thereby reducing or increasing the size of the clamping opening to increase the convenience of adjustment.

[0040] Among them, the clamping plates 11 in each clamping part 1 can be one pair or multiple pairs, that is, the number of pairs of clamping plates 11 can be appropriately increased according to the weight of the blade 4 and the maximum load required for clamping. The multiple pairs of clamping plates 11 only need to ensure that they are evenly distributed along the axial direction of the blade 4, and can be designed according to actual needs.

[0041] In some embodiments, continue to refer to Figure 1 and Figure 2 The adsorption part 2 includes a plurality of adsorption components evenly distributed on two clamping plates 11. Specifically, each clamping plate 11 is provided with a plurality of adsorption components, and the plurality of adsorption components are arranged in a matrix. The design of the plurality of adsorption components evenly distributed on the two clamping plates 11 can increase the stability of the connection between the clamping plates 11 and the blades 4. Preferably, each clamping plate 11 is connected to two adsorption components, and the two adsorption components are arranged at intervals along the length direction of the clamping plate 11, thereby ensuring the adsorption effect and reducing the material cost.

[0042] The adsorption assembly includes a guide rod 22 passing through the clamping plate 11, a suction cup 21 disposed at one end of the guide rod 22 facing the blade 4, and an elastic member 23 for providing elastic force to the guide rod 22 toward one side of the blade 4. The suction cup 21 is used to connect with a vacuum pump 24, that is, a plurality of guide rods 22 are distributed in an array and penetrate and slidably connected to the clamping plate 11. In this design, the adsorption assembly is arranged on the clamping plate 11 in a telescopic manner. By means of telescopic adjustment, the suction cups 21 distributed in the array are attached to the curved surface of the blade 4, and are used to be adsorbed to the surface of the blade 4 to form an anti-slip effect, which can effectively prevent the blade 4 from sliding along the axial direction.

[0043] Specifically, a through hole is formed on the clamping plate 11, and the guide rod 22 is inserted into the through hole.

[0044] In some embodiments, the suction cup 21 may be a universal suction cup 21, and the suction cup 21 is connected to a vacuum pump 24 through an air pipe. The vacuum pump 24 may be disposed on the bracket 301 described below, so that the overall structure is more compact. The design of the universal suction cup 21 can ensure the stability of adsorption, and the vacuum pump 24 can evacuate the suction cup 21 through the air pipe to achieve adsorption or release of the suction cup 21.

[0045] In some embodiments, an end plate is provided at the end of the guide rod 22 facing away from the suction cup 21, that is, the end of the guide rod 22 facing away from the suction cup 21 extends out of the clamping plate 11, and the extended end of the guide rod 22 is provided with an end plate, and the elastic member 23 includes a spring that is sleeved on the outer periphery of a portion of the guide rod 22, one end of the spring is connected to the end plate, and the other end of the spring is connected to the side of the clamping plate 11 facing away from the blade 4.

[0046] In this design, under normal conditions, the spring can support the end plate, so that the end of the guide rod 22 provided with the suction cup 21 can be away from the blade 4, to prevent the suction cup 21 from interfering with the clamping plate 11 clamped on the outer periphery of the blade 4. When the clamping plate 11 is clamped on the outer periphery of the blade 4, the spring can exert a force on the guide rod 22 toward the blade 4, to ensure that the suction cup 21 can fit the surface of the blade 4, and further ensure that the suction cup 21 can be adsorbed on the surface of the blade 4, to ensure the use effect of the adsorption part 2.

[0047] The end of the clamping plate 11 is provided with a clamping head 13 for abutting against the outer periphery of the blade 4. The clamping head 13 can increase the clamping force applied by the clamping plate 11 to the blade 4. At the same time, the clamping head 13 can be used with the adsorption part 2 to avoid the situation where the clamping plate 11 cannot contact the surface of the blade 4, thereby ensuring the clamping effect on the blade 4.

[0048] In some embodiments, the chuck 13 is provided with an anti-skid layer to increase the clamping and positioning effect of the chuck 13 on the blade 4 and avoid damaging the blade 4. The anti-skid layer can be made of a soft and elastic anti-skid material such as a silicone layer or a rubber layer to avoid damage to the surface of the blade 4.

[0049] In some embodiments, the shape of the clamp 13 is round and convex, and is used to press against the blade surface to meet the clamping requirements of the blade surface of the irregularly shaped blade 4.

[0050] In some embodiments, the clamping block 12 is provided with an anti-skid layer to increase the clamping and positioning effect of the clamping block 12 on the edge of the blade 4 and avoid damaging the blade 4. The anti-skid layer can be made of a soft and elastic anti-skid material such as a silicone layer or a rubber layer to avoid damage to the surface of the blade 4.

[0051] In some embodiments, the shape of the clamp is an arc, and the inner surface of the arc is used to face the edge of the blade 4, so that the edge of the blade 4 can be in arc contact with the inner surface of the clamp block 12 to avoid damaging the edge of the blade 4.

[0052] Combination Figures 1 to 3 As shown, the utility model also provides a fixing device for a wind turbine, comprising a frame portion 3 and at least one of the above-mentioned fixing fixtures for a wind turbine arranged on the frame portion 3. The fixing fixture for a wind turbine herein includes all the technical features of the above-mentioned fixing fixture for a wind turbine.

[0053] In some embodiments, in combination Figure 1 and Figure 2 As shown, there are two fixing clamps, which are used to be relatively arranged at the two ends of the blade 4. In this design, the clamping blocks 12 of the two fixing clamps can be clamped on the edges of the corresponding two sides of the blade 4 to increase the stability of the positioning of the blade 4 in the length direction and prevent the blade 4 from moving in its own length direction.

[0054] like Figure 3 As shown, the frame part 3 includes a seat body 31 and two brackets 301 arranged on the seat body 31, and the clamping seats 14 of the two fixing clamps are respectively arranged on the two brackets 301, and each bracket 301 is connected with a second telescopic member 32, and the second telescopic member 32 is used to drive the fixing clamp to move closer to or away from the blade 4. Specifically, the two second telescopic members 32 are arranged on the seat body 31 in a relatively distributed manner, and the second telescopic member 32 can drive the bracket 301 to move, and then drive the clamping seat 14 and the clamping plate 11 arranged on the clamping seat 14 to move, so that the clamping plate 11 can move closer to or away from the blade 4, increasing the convenience and accuracy of position adjustment, and the frame part 3 can connect the two fixing clamps into a whole, which is easy to operate. Among them, the second telescopic member 32 can be a hydraulic push rod, and it can be understood that the second telescopic member 32 can also be an electric push rod or a pneumatic push rod, etc. These are not restrictive and can be selected according to actual needs.

[0055] It can be understood that when in use, the blade 4 is placed between the two clamping parts 1, and under the extension and retraction of the second telescopic member 32, the clamping block 12 is clamped on the edges on both sides of the blade 4, and then the clamping plate 11 is closed to clamp the upper and lower surfaces of the blade 4, and at the same time, the adsorption part 2 is driven to be attracted to the upper and lower surfaces of the blade 4, thereby forming a clamping effect of clamping and adsorption, improving the stability of the clamping, avoiding the occurrence of slippage, and reducing the probability of accidental dangers.

[0056] Continue to refer to Figure 3 In order to match blades 4 of different sizes, the base 31 includes two fixed plates 311 and an extension plate 312 for connecting the two fixed plates 311. The two brackets 301 are respectively arranged on the two fixed plates 311, wherein the extension plates 312 are multiple in different specifications, and the multiple extension plates 312 can be selectively connected between the two fixed plates 311. In this design, the overall length of the base 31 can be changed by extending plates 312 of different specifications. In addition, the support height of the clamping part 1 can also be changed by replacing brackets 301 of different heights, so that blades 4 of different sizes can be matched accordingly to meet the use requirements of different blades 4 and increase the scope of use.

[0057] Specifically, two fixing plates 311 are detachably arranged at both ends of the extension plate 312 by bolts to increase the convenience of operation and the firmness after connection. The fixing plate 311 is L-shaped, and the extension plate 312 is I-shaped. Under this design, the connection position of the fixing plate 311 and the extension plate 312 is in surface contact, which increases the contact area and thus increases the firmness of the connection.

[0058] The working process of the fixing device provided by the utility model is as follows:

[0059] Place the blade 4 between the opposite sides of the two clamping parts 1, operate the second telescopic part 32 to extend, and move the two clamping blocks 12 closer to clamp the two side edges of the blade 4, then operate the first telescopic part 15 to extend, and close the two clamping plates 11, so that the clamp 13 is clamped to the upper and lower surfaces of the blade 4, and the suction cup 21 is adsorbed to the upper and lower surfaces of the blade 4, so as to complete the stable and non-slip clamping. The clamp can be fixed to the transportation equipment for transportation, or it can be connected with the lifting equipment or experimental equipment to lift, transport and experiment on the blade 4.

[0060] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0061] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A fixing fixture for a wind turbine, characterized in that: include: The clamping portion (1) comprises a clamping seat (14) and two clamping plates (11) arranged on the clamping seat (14); a clamping opening capable of clamping the outer periphery of the end of the blade (4) is formed between the two clamping plates (11); a clamping block (12) is further provided at the angle between the two clamping plates (11); the clamping block (12) is used to clamp the edge of the blade (4); The adsorption portion (2) is arranged on the clamping plate (11) and is used for adsorbing on the surface of the blade (4).

2. The fixing fixture for a wind turbine according to claim 1, characterized in that: The clamping portion (1) further comprises an adjusting member, wherein the adjusting member is capable of adjusting the angle between the two clamping plates (11).

3. The fixing fixture for a wind turbine according to claim 2, characterized in that: The adjusting member comprises two first telescopic members (15) hingedly arranged on the clamping seat (14), and one end of each of the first telescopic members (15) is hingedly connected to the outer side of the corresponding clamping plate (11).

4. The fixing fixture for a wind turbine according to claim 1, characterized in that: The adsorption portion (2) comprises a plurality of adsorption components evenly distributed on the two clamping plates (11), the adsorption components comprising a guide rod (22) passing through the clamping plate (11), a suction cup (21) arranged at one end of the guide rod (22) facing the blade (4), and an elastic member (23) used to provide an elastic force for the guide rod (22) toward one side of the blade (4), and the suction cup (21) is used to be connected to a vacuum pump (24).

5. The fixing fixture for a wind turbine according to claim 4, characterized in that: An end plate is provided at one end of the guide rod (22) facing away from the suction cup (21), and the elastic member (23) comprises a spring sleeved on a portion of the outer circumference of the guide rod (22), one end of the spring being connected to the end plate, and the other end of the spring being connected to a side of the clamping plate (11) facing away from the blade (4).

6. The fixing fixture for a wind turbine according to any one of claims 1 to 5, characterized in that: The end of the clamping plate (11) is provided with a clamping head (13) for abutting against the outer periphery of the blade (4).

7. A fixing device for a wind turbine, characterized in that: The invention comprises a frame part (3) and at least one fixing clamp for a wind turbine according to any one of claims 1 to 6, which is arranged on the frame part (3).

8. The fixing device for a wind turbine according to claim 7, characterized in that: There are two fixing clamps, and the two fixing clamps are used to be arranged oppositely at two ends of the blade (4).

9. The fixing device for a wind turbine according to claim 8, characterized in that: The frame portion (3) comprises a seat body (31) and two brackets (301) arranged on the seat body (31); the clamp seats (14) of the two fixing clamps are respectively arranged on the two brackets (301); each bracket (301) is connected to a second telescopic member (32); the second telescopic member (32) is used to drive the fixing clamp to move closer to or away from the blade (4).

10. The fixing device for a wind turbine according to claim 9, characterized in that: The seat body (31) comprises two fixed plates (311) and an extension plate (312) for connecting the two fixed plates (311); the two brackets (301) are respectively arranged on the two fixed plates (311); the extension plates (312) are multiple and of different specifications; and the multiple extension plates (312) can be selectively connected between the two fixed plates (311).

Images